The following table lists some of the most common alcohol and substance abuse violations.
| Violation | Relevant Code |
| Failing to implement a drug/alcohol testing program | 382.115(a) |
| Using a driver before receiving a pre-employment drug test result | 382.301(a) |
| Failing to conduct post-accident alcohol or drug test | 382.303 |
| Failing to do random drug tests at applicable annual rate | 382.305(b)(2) |
| Driver performing safety-sensitive function without follow-up | 382.503 |
| Using a driver who refused to take drug/alcohol test | 382.211 |
| Using a driver with a .04 alcohol level | 382.201 |
| Failing to implement a random controlled substance or alcohol testing program | 382.305 |
| Failing to do random alcohol tests at the applicable annual rate | 382.305(b)(1) |
| Using a driver who has tested positive for a drug | 382.215 |